@codecademy/gamut

Index: package/dist/Form/SelectDropdown/core/utils.js
===================================================================
--- package/dist/Form/SelectDropdown/core/utils.js
+++ package/dist/Form/SelectDropdown/core/utils.js
@@ -1,4 +1,5 @@
+import { isDefined } from '../../../utils/nullish';
 export const isMultipleSelectProps = props => !!props.multiple;
 export const isSingleSelectProps = props => !props.multiple;
 /**
  * Resolves the value for a newly created option from react-select action metadata
@@ -15,9 +16,9 @@
   }
   const newOption = optionEvent.find(option => option.__isNew__);
   return newOption?.value || undefined;
 };
-export const isOptionGroup = obj => obj != null && typeof obj === 'object' && 'options' in obj && obj.options !== undefined;
+export const isOptionGroup = obj => isDefined(obj) && typeof obj === 'object' && obj !== null && 'options' in obj && obj.options !== undefined;
 export const isOptionsGrouped = options => Array.isArray(options) && options.some(option => isOptionGroup(option));
 
 /**
  * Filters options based on the selected value(s).